横向
1
Smallest unit of an element
3
Amplified beam of light
4
Mass per unit volume
7
Nerve cell in the brain
纵向
1
Substance with pH below 7
2
Second lightest element
5
Reddish electrical conductor
6
Unit of power
Smallest unit of an element
Amplified beam of light
Mass per unit volume
Nerve cell in the brain
Substance with pH below 7
Second lightest element
Reddish electrical conductor
Unit of power